{"id":"CVE-2023-52442","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-52442","generatedAt":"2026-11-04T22:24:05.978Z","title":"In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in compound request `smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session() will always return the first request smb2 header in a…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: validate session id and tree id in compound request\n\n`smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session()\nwill always return the first request smb2 header in a compound request.\nif `SMB2_TREE_CONNECT_HE` is the first command in compound request, will\nreturn 0, i.e. The tree id check is skipped.\nThis patch use ksmbd_req_buf_next() to get current command in compound.","published":"2024-02-21T08:15:46.000Z","lastModified":"2026-08-04T10:18:28.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["linux/linux kernel"],"epss":{"score":0.29644,"percentile":0.98196,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 29.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-52442","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}